Remove --allow-file-access and accompanying logic

chrome/browser/chromeos/chrome_browser_main_chromeos.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/chromeos/chrome_browser_main_chromeos.h"
 
 #include <stddef.h>
 
 #include <string>
 #include <utility>
@@ skipping 462 matching lines @@
   // This forces the ProfileManager to be created and register for the
   // notification it needs to track the logged in user.
   g_browser_process->profile_manager();
 
   // AccessibilityManager and SystemKeyEventListener use InputMethodManager.
   input_method::Initialize();
 
   // ProfileHelper has to be initialized after UserManager instance is created.
   ProfileHelper::Get()->Initialize();
 
-  // TODO(abarth): Should this move to InitializeNetworkOptions()?
-  // Allow access to file:// on ChromeOS for tests.
-  if (parsed_command_line().HasSwitch(::switches::kAllowFileAccess))
-    ChromeNetworkDelegate::AllowAccessToAllFiles();
-
   // If kLoginUser is passed this indicates that user has already
   // logged in and we should behave accordingly.
   bool immediate_login =
       parsed_command_line().HasSwitch(switches::kLoginUser);
   if (immediate_login) {
     // Redirects Chrome logging to the user data dir.
     logging::RedirectChromeLogging(parsed_command_line());
 
     // Load the default app order synchronously for restarting case.
     app_order_loader_.reset(
@@ skipping 448 matching lines @@
 
   ChromeBrowserMainPartsLinux::PostDestroyThreads();
 
   // Destroy DeviceSettingsService after g_browser_process.
   DeviceSettingsService::Shutdown();
 
   chromeos::ShutdownCloseTracking();
 }
 
 }  //  namespace chromeos